Sanding device



Julylo, 192s.; I 1,676,406

' W. H. MCCLELLAND SANDING DEVICE Filed Dec. 15, 1924 4l Sheets-Sheet Piden/0l. I v Y v l @wie a 1,676,406 W. H. MCCLELLND SANDING DEVICE July l0, 1928.

Filed D. 15, 1924 4sneets-sneet 2 July 1o, 192s'.V 1,676,406

w. H; Mccl rs| L.\ND

SANDING DEVICE Filed Dec. 15, 1924 4 sheets-sheet 3 24 3% mgm/wm@ July 1o, 1926. 1,676,406

W. H. MCCLELLAND SANDING DEVICE 111166 666.15, 1924 4 sheets-sheet 4 APatented July i9, i928.

- caire, sfr" tareas WILLIAM H. MCCLELLANID, oF HUNTINGDON, PENNSYLVANIA, yAssIeNoR7 `BY M'ESNE ASSIGNMENTS, To ROYv I. M. DAVIS, or MOUNT UNION, PENNSYLVANIA.

SAND'ING DEVICE. y

Application filed December 15, 1924.- Serial No. 755,941.

My invention relates to improvements in brick making machines and is more particularly directed to that type of machine wherein the green bricks are formed yin inde-g pendent molds, each of which is conveyed 1 past a illing and discharging station.

The object of my invention is to provide means for coating the` interior of each mold with sand or similar granulated material IU to prevent the newly formed brick from ad# hering thereto and breaking when in the act of removing the same from the mold.

A further object of my inventionvis toV provide means of theclass described, so positioned in the line of travel of the moldsy from their discharging to filling positions thatl they are received vand treated successively andl continuously.

Another objectof my invention is to provide means for operating the sanding device in unison with the mold conveying means.

These and. other objects will be fully apparent from ,the following. description. In the accompanying drawings i Figure l V.is Va side elevation 'of my im proved sanding device illustrating the upper portion thereof which is directed to the op erating means.

Figure la is asimilar view showing the lower portion of the device'and rmore .specifically the sanding means.

Figure 2 is a vertical sectional view `taken through the center of the sanding means.

Figure 3 is a detail view of the means for locking vthe sandinh means in its receiv ing and discharging positions.

Figure 4 is a topplan View of the locking means. v

' Figure 5 is avertical sectional view taken on the line 5--5 of Figure 4. f

Figure is an end elevation of the locking means.

Figure .7 is a longitudinal sectional View of the same. f

.Figure 8 is a bottom plan view of Figure 7. 1 Figure 9 isa side elevation of thefollower. Y

,FigureflO is an,y end elevation of the same. Figure 11 a top plan. view' of the loclf ing @parat-ing device v Figure 12 i-s a ,sectional view taken on the line 12j-l2 of Figure ll.

Figure 13 is a sectional viewv taken on the line 13-113 lof Figure v11,"and s Figurexla `is a detail viewof the stub shaft upon which the locking means is mounted. l 1

According to my invention, I provide means forcoating the .interior of a brick moldwith sand or the like,the same consisting oii'vra sand retaining` hopper in. which is mounted orjrotation a mold carrying "element, the same receivingamold to be treated and upon rotation thegel'ement deposits upon the mold sand. Theelement is locked in its receiving and discharging positions byrmeans of a locking device A, thel same` being moved by a cam engaging roller'B, through the medium of a lever C and a connecting rod D. It is my purpose to operate the locking means in unison with the vmold carrying means so that `the locking means will be operative yduring the receiving and discharging periodsl of the -mold Vcarryingelement.,v 1 V`Referring to the'accompanying drawings. in detail, wherein like referencel kcharacters denote corresponding parts throughout the several views, the numeral 1 indicatessuitz' able vertically extending angle bars of a brick making machine, the samenot being Vshown in* the drawings, said bars having convnected thereto my improved sanding device and themeans for operatingV the same.: It

.is of .course to be understood that theifsandkmolds as theypassback to their filling 'Sta tion, and the powerr for operating the device may be obtained romvthe machine.` The operationof the sandingdevice is continuous and treats the molds successively asthey.

jpass therethrough on theirv way back to the filling station. As disclosed in Figure 2, the sanding de-l vice consists of'a semi-cylindricalV hopper 2 adapted to receiveftherein the molds .to .be j'.

treated and preferably vof a width suiiicigent to receive therein a mold The hopper 2 A'is mace er mami che nia@ ana suite on K Y ably reinforced, the lower portion having a discharge opening 3 whereby the sand with in the hopper may be removed. The ends of the hopper 2 have mounted thereon smb able bearings, not shown, which receive therein a shaft 4, the same extending longitudinally of the hopper and adapted foi` rotation within itsibearings. l

011e end of the shaft 4 has keyed thereto l a sprocket wheel 5 around which passes a chain 6 leading from suitable driving means carried by the bars l landV operated from the main drive of the brick machine. Y

It is mypurpose to providef'a driving means which will vperiodically rotate the shaft 4, "and the sanding` device lcarried thereby, the latter hereinafter1 described, and to this end l have arranged a driving means of the mutilated gear type which operates a shaft having keyed thereto a gear 7, around which 'the sprocket chain. y6 passes.

That. portion of the `shaft 4 which extends over the 4hopper 2 is flattened, as indicated at 8,1 and has secured thereto plates 9 which extend approximately the entire length of thehopper 2. rrlheplates 9 form a support fortlie molds H duringthe operation of the device, and they have secured therebetween, adjacent the Aends of the hopper, upwardly `and vdownwardly projecting hook members 10, being arranged in pairs and the upper and lower member at each 'end of the plates being in the samel vertical plane, as illustrated in Figure 2. Each pair of the upper and lower hook members'are. connected by a' metallic covering ll, the end portions of which extend down to form side-:flanges 12', thus forming a scoop like structure. Each Ycovering 1l hasriveted thereto, between the hook-members a. guard 13 ythe lower portion of which extends out at an 'angle to 'fall within the same vertical plane as the lip or edge of theother scoop member. The pur? pose of theguard memberl being to assist in limiting ythe inward ymovement, of the molds upon the jplates 9 and at Athe saine time to prevent the sand as it rfalls from the Aupper scoop froinfalling into the hopper by directing it intothe lower scoop. n

The side flanges l2 are adapted to receive thereon the molds to be treated, the ysaine being received, as illustrated in Figure 2, upon they edges of the flanges. 'I

In order to permit the entryof the molds to be treated into the hopper 2, one side wall of the hopper is provided withan opening 14 through which the molds pass. 'As hereinabove explained, themolds are received upon the edges of the 'flanges 12, and areA limited in their 'inward lmovement by rods l5 'connecting the hook members'of each pair and against whichthe molds abut. Upon referringto Figure 2 Yit will be noted'that the inclined guarc'ls i3 pass over the rods l5 and form thereunder, and between the hook members l0 of each pair, an opening through which sand passes, in a manner hereinabove described. In order to prevent the sand from passing through this opening during the rotary movement of the scoops .from their lower to their upper positions, it is my purpose to utilize the mold carried by the scoop as the means for closing this opening. This feature I consider to be a very important one in that the movement of the sand is controlled by the presence of a mold to be treated. `I-leretofore, I have used in actual practice sliding or hinged gates to control this movement of the sand but found these to be imp racticable due to the difficulty of giving to the gate a free action as the same isfat periods submerged in sand.

From the vforegoing description it will 'be apparent that as the shaft 4 is rotated the upper `scoop member will move down. into the hopper 2, picking up a portion of the sand therein, and is then locked in a position yso that the incoming mold H to bc treated may be received upon tl'reflanges l2. After the mold is received the shaft 4 again rotates and moves the scoop to its upper po- Asition, the sand being prevented from falling through'the opening at` the rear'of the scoop by the mold which closes the same.- Upon the scoop assuming its upper position the sand contained therein will drop down upon the mold', and thatportion of the sand contained 'within the front portion of tlie upper scoop will drop 'and fall upon the guard 13 where it is carried to the lower scoop. As the scoop moves from its upper position the sand remaining therein will likewise be 4directed to thelowe'r scoop by the guard 13. It vis of course apparent that as the mold is removed from the scoop Vafter having been treated it will draw the excess sand remaining upon the plate 9 toward the front where it will fall upon the guard 13 and be conveyed into the lower scoop. 'lVhilo the treated moldlis being removed therefrom an untreated mold is being received within the lower scoop. y

While I have not disclosed means for delivering or removing the molds to vand vfrom 'the device it is 'of course to be understood that any suitable means may be employed; vfor instance, endless conveyors' or the like.

rIn order topi-event the sand within the scoops from being thrown out of the limits of the hopper when the scoopslassume their upper positions, l have provided a shield 16 fixed to the edge of the hopper 2, the same being yprovided withA an opening through which the treated molds pass out. y In order that the scoops may be locked in receiving and discharging positions, l have provided a locking device which l have indicated generally by the letter A and operated in a manner hereinabove referred jto. rlhe locking device A engages diametrically oplili) posite notches provided in the peripheryof the plate E, keyed to the shaft The lockingdevice A Consists of arthreaded'bolt 17 pivotally mounted upona stub shaft 18, `thelatterbeing tiXedlto one of the bars 1. The bolt 17 is locked upon theshaft i 18y by means of a pin 19'an`dy spaced'trom engagement with the'bar 1 by a shoulder 20 formed integral with the'shaft 18.

The bolt17 has slidably mounted thereon a casting 21, the opposite vertical side walls of which have fixed thereto, by bolts or the like 22, parallel and rearwardly extending bars 23, which receive therebetween a sliding block 24.l the rear face of which abuts a nut 25 movable upon thebolt 17 and locked thereto by a pin 26.

The casting "21 is retained upon the bolt 17 by means of a second locked nut 25,. Interposed between the casting 21 and the block 24, and coiled about the bolt 17 ,is a

spring 27 which permits the backward movement of the casting upon the bolt 17'.,4

The casting 21 has extending downward therefrom a bifurcated projection 28 which receives therein the periphery of a circular plate E keyed to the shaft 4, the base of the projection dropping into suitable notches 29 Yformed in the periphery of the plate, thus locking the shaft 4, and the sanding device carried thereby, in its several positions. It will be noted that the locking device as a unit is free` to swing upon its pivotal connection with the stub shaft 18.

The upper face of the casting 21 is provided with spaced upwardly extending projections 30, the Jfree end portions of which are vconnected by a bolt 31, upon which. the lower end of a connecting .rod D is mounted for pivotal movement. Thusit will be ready ily apparent that upon the movement of the connecting rod D the locking device A will' l as at 35, to t within openings provided within the end portions of side bars 36. The end portions 35 are further reduced and threaded, as indicate at 37, to receive thereon locking nuts 38 by whichthe bars 36 are 'retained in place.

' The other end portions ofthe side bars have positioned therebetween al roller 39 which has formed integral therewith upon .each of its sides spacers 40, said roller and spacers being mounted for rotation upon a shaft 41, the end portions ot which are threaded, as at 42, and project through suitventi on. Y

able openings within" the side bars to'receive thereon locking nuts 43. a The roller 39 is free to rotate` upon the shaftv 41and is adapted to'engage a cam-44 formed upon-the periphery of a wheel V45 keyed to a shaft 46, the latter being operated from any suitable power shaft of the machine. The Vside bars'36 are pivotally vmount-- ed upon a Vcommon 'pinv47 carriedv by av bracket 48 secured to one of the main bars 1.

Referring 'again to Figure 3,3it will' be noted that the plateEprotates in the direction lof the arrow and before the notch 29 comes into position `to be engagedgbythe lockingdevice A, the vsame-drops and rides upon the periphery of the plate E. v In order c Y to prevent the locking device from riding causing the lsame to drop into the notch.

Fromtheioregoing, itis thought that the construction, operation and many advantages of the herein described invention will be apparent to those skilled in the fart, kwithoutfurther description, and it will be understood that various changes in thesize, shape and proportion, as well as minor changes in the details 'of construction, may be resorted past the notch one.. wall of the latter is shorter than the other,l as indicated at 29', thusV permitting the other wall to serve as a stop against which the locking .device abuts,g

to without departing from the spirit or sacrificing anyot the advantages of the in- Having thus fully what I claim as new, and desire to secure by Letters Patent, is n 1. In ai device of the class described, the

combination of a lmaterial retaininghopper anda mold carrying element rotatable therein, means forperiodically moving said element from a `receiving to a discharging position, and asecond meansfor locking ,said element in either of saidvpositions j 2. In a device of the class described, the combination of a .material retaining hopper and a mold carrying element rotatable therein, means for` periodically'rotating said elemold discharging position, said element adapted to deposit materialv upon said mold described my invention, f

loe

ment from a mold receiving position `to a v during its movement, and means for locking theelement in either of said positions.

3. In aV device oi. the class described, thev combination of a material retaining hopper and a mold carrying element rotatable therein, driving means connected to said element for moving the vsame from'a receiving to a ydischarging. position, cam operated `means for locking said element in either of said positions, and said element adapted to deposit upon--the mold carried therebya portion'ofY the material within said hopper. j

4. In a'deviceof the class described, the

combination of a material retaining hopper l and a mold carrying element rotatable there- Y in, driving'ineans connected to said element Vfor moving the saine periodically Jfromy a receiving point'to a discharge point7 a second ineans alternating with the first said means l'or klocking 'said element in either of said points, and Asaid element adapted to deposit upon the mold carried thereby a portion of the materialretained by said hopper.

5. In. a device of the class described,

l0 the combination o-a sand retaining hopper andV a mold carrying element rotatable therein, said element 'being composed of two scoop-like structures adapted yto scoop up sand from the hopper during their rotation l5 Aandfdrop the 'saine down upon a mold carried thereby, `and guide plates fixed to each scoop to guidetherei'n, a part of the sand dropped from thel upper scoop. 6. In a device f the class described, the `combination of a sand retaining hopper and afmold carrying element rotatable therein, said element being composed of ktwo scoop members beingdiametrioall'y connected to a common shaft, a plate secured to each scoop to retain the sand therein durinrav its movement, and said plate adapted to guide vwithin one scoop a part of the sand dropping from the other scoop.4 y

'In testimony whereof I afiX my signature..

W'ILLAM H. MoCLE'LLAN-D. 

